Help me plss. How to make a letter "Z" asterisk pattern in C++

The program forms the letter Z by printing n input
character symbols on the upper line, n input character symbols on the lower line, and n input
character symbols on the diagonal line. If the value of n is less than or equal to 2, the program
prints “Cannot create the mark.”.
The input and printing process must be repeated until the user presses n, for stop.

- Get ColumnSize
- Create a 2D array ColumnSize x ColumnSize with each element initialized to ' '(space)
- Populate the First and last column of the 2D array '#'
- for i = ColumnSize - 1 to 0
- make Array2D[ColumnSize][ColumnSize] = '#'
- Print the whole array

Its more easy to grasp( at least I think so ) if you use the above approach, but using can do this without using array

Write a C program that should create a 10 element array of random integers (0 to 9). The program should total all of the numbers in the odd positions of the array and compare them with the total of the numbers in the even positions of the array and indicate ...

I have a 2d matrix with dimension (3, n) called A, I want to calculate the normalization and cross product of two arrays (b,z) (see the code please) for each column (for the first column, then the second one and so on).
the function that I created to find the ...